Public water system · WI6090445
ActiveDuncan Prairie Mhc
At a glance
Duncan Prairie Mhc (PWSID WI6090445) is an active community water system in Chippewa County, Wisconsin. It reports serving 64 people through 35 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
64
Service connections
35
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Duncan Prairie Mhc compare with other water systems in Chippewa County?
By EPA's size categories, Duncan Prairie Mhc is a very small system (500 people or fewer). Chippewa County has 218 active public water systems. Its population served is well below the county average of 237 people per system, and accounts for 0.1% of the 51,682 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Duncan Prairie Mhc is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Wisconsin has 1,053 active community water systems, 9.5% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Duncan Prairie Mhc?
EPA lists Duncan Prairie Mhc as privately owned. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 183 of the 218 active systems in Chippewa County (84%) are also privately owned.
Does Duncan Prairie Mhc have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in January 2022. The violations listed here began between October 1991 and January 2022. By type: 6 monitoring and reporting, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2012-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1991-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 8 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Duncan Prairie Mhc: frequently asked questions
Who runs Duncan Prairie Mhc?
Duncan Prairie Mhc (PWSID WI6090445) is a community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Duncan Prairie Mhc serve?
Duncan Prairie Mhc reports serving 64 people through 35 service connections in Chippewa County, Wisconsin.
Where does Duncan Prairie Mhc get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Duncan Prairie Mhc have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in January 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Duncan Prairie Mhc's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in January 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Duncan Prairie Mhc's water quality report?
As a community water system, Duncan Prairie Mhc must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Chippewa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Chippewa Falls Waterworks | Chippewa | 13,375 | Community | Groundwater |
| Lake Hallie Waterworks Village of | Chippewa | 6,701 | Community | Groundwater |
| Bloomer Waterworks | Chippewa | 3,680 | Community | Groundwater |
| Stanley Waterworks | Chippewa | 3,500 | Community | Groundwater |
| Cornell Waterworks | Chippewa | 1,390 | Community | Groundwater |
| Cadott Waterworks | Chippewa | 1,352 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Duncan Prairie Mhc, PWSID WI6090445, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/duncan-prairie-mhc-wi6090445 (data as of October 1, 2026).